Just a couple that I can think of.
I was sharing an EXP spot with a Japanese player (both of us solo, not teamed up), and both of us were really respectful/fair about the partitioning of mobs in the area, trading off claims when necessary. It went like that for a good amount of time with no complaints. As simple as that seems, it can be hard to find in an MMORPG... Before I left I noticed he was still wearing the starter gear so I gave him a piece of gear that I'd crafted and intended on selling for gil. All things considered, I feel like that was a much better use of materials.
Another one would be that me and my boyfriend (both Miqo'te normally) decided we'd try out Lalafell for a bit, so we both made our Lalafell and sat in the Mizzenmast Inn and played around emoting at each other. Eventually this little Japanese Lalafell showed up and joined in for a little while. We never really said anything to each other but it was still amusing nonetheless.
I love little things like that. They remind me exactly why I'm playing an MMORPG and not a one-player console RPG.
Edited, Sep 13th 2010 8:31pm by Kaelia88